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EPA ratings for all 85 kWh models

I was browsing the EPA website earlier today, and noticed some interesting numbers for the S85, S85D, and P85D.

First thing that struck me is that they had two versions for the P85D. The 2014 version, which is just called out as "2014 Tesla Model S AWD (85 kW-hr battery pack)" with no mention of the P85D model, was rated at 242 miles of range (with the same MPGe details as those on my Monroney sticker) whereas the 2015 version, called out properly as "2015 Tesla Model S AWD - P85D", is rated at 253 miles - which is what Tesla currently advertises:

The next interesting thing is the power rating of the motors:

It looks like the front motor in the 2015 version of the P85D was reduced to 164 kW (241 hp) from the 2014 version, which supposedly had 180 kW (220 hp). Tesla's website currently shows 221 hp for the front motor.

Lots of odd things in there - what caught my attention is that both the 2015 D cars had increases in the MPGe numbers beyond what we saw before - continuing or increasing the disconnect between electric range and MPGe that had us all scratching our heads when the 242 number first surfaced.

362 hp was the listed figure for the RWD S85 for a long time. iirc, TM only started advertising 380 hp last Fall. it was never clear to me if there was a real change, or if they simply changed the method of measurement.

I believe there's a typo in the before and after figures for the P85D (before and after numbers for the front motor switched).

We've been over this before. There isn't a good answer for it. I've been pondering making a FOIA request to the EPA and NHTSA for all communications with Tesla from 2011 on regarding testing for the numbers that go on window stickers.

As breser said, we spent several pages hashing this out when we first saw a P85D window sticker. The only way I can see to fit all of the numbers on the tag together (mainly the AER and MPGe) is with fewer kWh - but we know that the packs have the same useable amount. If it was due to changing the charge level at the start of the test (as several of us suggested,) then why did Tesla change the rated range numbers so the car gets the EPA rating at 100% SoC. The pieces don't all fit together.

The MPGe totals on the website above are a close match for the kWh/100 miles numbers below them, allowing for rounding:

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